 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  ******************************************************************************/

 package org.eclipse.ui.internal.ide.undo;

 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.OperationCanceledException;
 import org.eclipse.core.runtime.SubProgressMonitor;

 /**
  * ProjectDescription is a lightweight description that describes a project to
  * be created.
  *
  * This class is not intended to be instantiated or used by clients.
  *
  * @since 3.3
  *
  */
 public class ProjectDescription extends ContainerDescription {

     private IProjectDescription projectDescription;
     private boolean openOnCreate = true;

     /**
      * Create a project description from a specified project.
      *
      * @param project
      * The project to be described. The project must exist.
      */
     public ProjectDescription(IProject project) {
         super(project);
         Assert.isLegal(project.exists());
         if (project.isOpen()) {
             try {
                 this.projectDescription = project.getDescription();
             } catch (CoreException e) {
                 // Eat this exception because it only occurs when the project
 // is not accessible and we have already checked this. We
 // don't want to propagate the CoreException into the
 // constructor
 // API.
 }
         } else {
             openOnCreate = false;
         }
     }

     /**
      * Create a project description from a specified IProjectDescription. Used
      * when the project does not yet exist.
      *
      * @param projectDescription
      * the project description for the future project
      */
     public ProjectDescription(IProjectDescription projectDescription) {
         super();
         this.projectDescription = projectDescription;
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.internal.ide.undo.ContainerDescription#createResourceHandle()
      */
     public IResource createResourceHandle() {
         return ResourcesPlugin.getWorkspace().getRoot().getProject(getName());
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.internal.ide.undo.ResourceDescription#createExistentResourceFromHandle(org.eclipse.core.resources.IResource,
      * org.eclipse.core.runtime.IProgressMonitor)
      */
     public void createExistentResourceFromHandle(IResource resource,
             IProgressMonitor monitor) throws CoreException {
         Assert.isLegal(resource instanceof IProject);
         if (resource.exists()) {
             return;
         }
         IProject projectHandle = (IProject) resource;
         monitor.beginTask("", 200); //$NON-NLS-1$
 monitor.setTaskName(UndoMessages.FolderDescription_NewFolderProgress);
         if (projectDescription == null) {
             projectHandle.create(new SubProgressMonitor(monitor, 100));
         } else {
             projectHandle.create(projectDescription, new SubProgressMonitor(
                     monitor, 100));
         }

         if (monitor.isCanceled()) {
             throw new OperationCanceledException();
         }
         if (openOnCreate) {
             projectHandle.open(IResource.BACKGROUND_REFRESH,
                     new SubProgressMonitor(monitor, 100));
         }
         monitor.done();
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.internal.ide.undo.ContainerDescription#getName()
      */
     public String getName() {
         if (projectDescription != null) {
             return projectDescription.getName();
         }
         return super.getName();
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.internal.ide.undo.ResourceDescription#verifyExistence(boolean)
      */
     public boolean verifyExistence(boolean checkMembers) {
         // We can only check members if the project is open.
 IProject projectHandle = (IProject) createResourceHandle();
         if (projectHandle.isAccessible()) {
             return super.verifyExistence(checkMembers);
         }
         return super.verifyExistence(false);
     }
 }
